j. nat. appl. sci.

Süleyman Demirel Üniversitesi Fen Bilimleri Enstitüsü Dergisi

1308-6529

Süleyman Demirel University

10.19113/sdufenbed.1740209

Civil Geotechnical Engineering Soil Mechanics in Civil Engineering

İnşaat Geoteknik Mühendisliği İnşaat Mühendisliğinde Zemin Mekaniği

Investigation of Geotechnical and Strength Properties of Nickel-Contaminated Soils

Nikel ile Kirlenmiş Zeminlerin Geoteknik ve Dayanım Özelliklerinin İncelenmesi

https://orcid.org/0009-0000-0896-3723

Bulut

Rumeysa

İZMİR KATİP ÇELEBİ ÜNİVERSİTESİ

https://orcid.org/0009-0007-1340-9680

Doğan

Zehra

İZMİR KATİP ÇELEBİ ÜNİVERSİTESİ

https://orcid.org/0000-0001-6594-8095

Develioglu

Inci

İZMİR KATİP ÇELEBİ ÜNİVERSİTESİ

04 24 2026

30 1 59 66 07 11 2025 02 05 2026

1995

Süleyman Demirel University Journal of Natural and Applied Sciences

In this study, the geotechnical and strength properties of sandy soils contaminated with different concentrations of nickel sulfate (NiSO₄) were experimentally investigated. Clean soil samples were prepared and artificially contaminated with nickel sulfate solutions at concentrations of 1000 ppm, 2000 ppm, and 5000 ppm. To assess the impact of contamination on soil behavior, grain size distribution, specific gravity, liquid limit, compaction, and direct shear tests were conducted. The results indicate that nickel contamination significantly affects soil behavior. Notably, a considerable decrease was observed in the liquid limit and internal friction angle, while an increase in optimum moisture content and a decrease in maximum dry unit weight were recorded. These changes stem from the influence of heavy metal ions on soil-water interactions and interparticle structure. The findings of this study highlight the potential risks of nickel-contaminated soils in engineering projects and contribute to the development of soil improvement strategies for polluted sites.

Bu çalışmada, farklı konsantrasyonlarda nikel sülfat (NiSO₄) ile kirletilmiş kumlu zeminlerin geoteknik ve dayanım özellikleri deneysel olarak incelenmiştir. Araştırma kapsamında temiz zemin örnekleri hazırlanarak 1000 ppm, 2000 ppm ve 5000 ppm konsantrasyonlarında nikel sülfat çözeltileri ile yapay olarak kirletilmiştir. Kirlenmenin zemin üzerindeki etkilerini belirlemek amacıyla dane boyu dağılımı, özgül ağırlık, likit limit, kompaksiyon ve direkt kesme deneyleri uygulanmıştır. Elde edilen bulgular, nikel kirliliğinin zemin davranışını önemli ölçüde etkilediğini göstermektedir. Özellikle likit limit ve içsel sürtünme açısında belirgin düşüşler gözlenirken, optimum su içeriğinde artış, maksimum kuru birim hacim ağırlıkta ise azalma meydana gelmiştir. Bu değişikliklerin, ağır metal iyonlarının zemin-su ilişkisini ve daneler arası yapıyı etkilemesinden kaynaklandığı sonucuna varılmıştır. Çalışma sonuçları, nikel ile kirlenmiş zeminlerin mühendislik projeleri üzerindeki potansiyel risklerini ortaya koymakta ve bu tür sahalarda uygulanabilecek zemin iyileştirme tekniklerinin geliştirilmesine katkı sağlamaktadır.

Dayanım parametreleri Geoteknik özellikler Nikel kirlenmesi

Geotechnical properties Nickel contamination strength parameters

İzmir Katip Çelebi Üniversitesi Bilimsel Araştırma Projeleri

2024-KDP-MÜMF-0018

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